Morrow, Ivor L.Dingley, G.Cooper, A. (Dstl)2009-11-192009-11-192009-11-19http://hdl.handle.net/1826/3979To be presented at Loughborough Antennas & Propagation Conference, Loughborough, 16th - 17 th November 2009A wideband planar monopole antenna requiring a small ground plane is described. Numerical and measured results confirms the antenna has good radiation efficiency and stable omni-directional radiation patterns over an impedance bandwidth of 4.1:1 covering the 200-850 MHz frequency spectrum.enConference paper